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Sequential recommender systems (SRSs) aim to suggest next item for a user based on her historical interaction sequences. Recently, many research efforts have been devoted to attenuate the influence of noisy items in sequences by either…

信息检索 · 计算机科学 2024-06-21 Xiaofei Zhu , Liang Li , Weidong Liu , Xin Luo

In Conversational Recommendation Systems (CRS), the central question is how the conversational agent can naturally ask for user preferences and provide suitable recommendations. Existing works mainly follow the hierarchical architecture,…

计算与语言 · 计算机科学 2023-10-24 Xian Li , Hongguang Shi , Yunfei Wang , Yeqin Zhang , Xubin Li , Cam-Tu Nguyen

Conversational recommender systems (CRSs) aim to provide recommendation services via natural language conversations. Although a number of approaches have been proposed for developing capable CRSs, they typically rely on sufficient training…

计算与语言 · 计算机科学 2024-06-21 Xiaolei Wang , Kun Zhou , Xinyu Tang , Wayne Xin Zhao , Fan Pan , Zhao Cao , Ji-Rong Wen

A common approach to personalization in large language models (LLMs) is to incorporate a subset of the user memory into the prompt at inference time to guide the model's generation. Existing methods select these subsets primarily using…

人工智能 · 计算机科学 2026-04-17 Jillian Fisher , Jennifer Neville , Chan Young Park

Sequential recommender systems (SRS) aim to predict users' subsequent choices based on their historical interactions and have found applications in diverse fields such as e-commerce and social media. However, in real-world systems, most…

信息检索 · 计算机科学 2024-11-04 Qidong Liu , Xian Wu , Yejing Wang , Zijian Zhang , Feng Tian , Yefeng Zheng , Xiangyu Zhao

Conversational recommender systems (CRSs) are able to elicit user preferences through multi-turn dialogues. They typically incorporate external knowledge and pre-trained language models to capture the dialogue context. Most CRS approaches,…

Conversational recommender systems (CRSs) integrate both recommendation and dialogue tasks, making their evaluation uniquely challenging. Existing approaches primarily assess CRS performance by separately evaluating item recommendation and…

信息检索 · 计算机科学 2026-01-27 Nuo Chen , Quanyu Dai , Xiaoyu Dong , Piaohong Wang , Qinglin Jia , Zhaocheng Du , Zhenhua Dong , Xiao-Ming Wu

Conversational Recommender System (CRS), which aims to recommend high-quality items to users through interactive conversations, has gained great research interest recently. A CRS is usually composed of a recommendation module and a…

计算与语言 · 计算机科学 2022-10-10 Lingzhi Wang , Huang Hu , Lei Sha , Can Xu , Kam-Fai Wong , Daxin Jiang

Conversational Recommender Systems (CRSs) have garnered attention as a novel approach to delivering personalized recommendations through multi-turn dialogues. This review developed a taxonomy framework to systematically categorize relevant…

人机交互 · 计算机科学 2025-06-26 Haoran Zhang , Xin Zhao , Jinze Chen , Junpeng Guo

Large Language Models (LLMs) have recently emerged as promising tools for recommendation thanks to their advanced textual understanding ability and context-awareness. Despite the current practice of training and evaluating LLM-based…

信息检索 · 计算机科学 2025-06-12 Sein Kim , Hongseok Kang , Kibum Kim , Jiwan Kim , Donghyun Kim , Minchul Yang , Kwangjin Oh , Julian McAuley , Chanyoung Park

Sequential Recommenders generate recommendations based on users' historical interaction sequences. However, in practice, these collected sequences are often contaminated by noisy interactions, which significantly impairs recommendation…

信息检索 · 计算机科学 2025-06-10 Bohao Wang , Feng Liu , Changwang Zhang , Jiawei Chen , Yudi Wu , Sheng Zhou , Xingyu Lou , Jun Wang , Yan Feng , Chun Chen , Can Wang

Large Language Models (LLMs) have recently been widely adopted in conversational agents. However, the increasingly long interactions between users and agents accumulate extensive dialogue records, making it difficult for LLMs with limited…

计算与语言 · 计算机科学 2025-09-30 Derong Xu , Yi Wen , Pengyue Jia , Yingyi Zhang , wenlin zhang , Yichao Wang , Huifeng Guo , Ruiming Tang , Xiangyu Zhao , Enhong Chen , Tong Xu

Recently, Large Language Models (LLMs) have been widely employed in Conversational Recommender Systems (CRSs). Unlike traditional language model approaches that focus on training, all existing LLMs-based approaches are mainly centered…

计算与语言 · 计算机科学 2025-09-26 Jianyu Wen , Jingyun Wang , Cilin Yan , Jiayin Cai , Xiaolong Jiang , Ying Zhang

Conversational recommendation systems (CRS) aim to recommend suitable items to users through natural language conversation. However, most CRS approaches do not effectively utilize the signal provided by these conversations. They rely…

计算与语言 · 计算机科学 2023-05-24 Raghav Gupta , Renat Aksitov , Samrat Phatale , Simral Chaudhary , Harrison Lee , Abhinav Rastogi

Cross-domain Sequential Recommendation (CDSR) aims to extract the preference from the user's historical interactions across various domains. Despite some progress in CDSR, two problems set the barrier for further advancements, i.e., overlap…

信息检索 · 计算机科学 2025-04-28 Qidong Liu , Xiangyu Zhao , Yejing Wang , Zijian Zhang , Howard Zhong , Chong Chen , Xiang Li , Wei Huang , Feng Tian

Conversational recommender systems (CRSs) aim to proactively capture user preferences through natural language dialogue and recommend high-quality items. To achieve this, CRS gathers user preferences via a dialog module and builds user…

人工智能 · 计算机科学 2025-11-12 Zhenye Yang , Jinpeng Chen , Huan Li , Xiongnan Jin , Xuanyang Li , Junwei Zhang , Hongbo Gao , Kaimin Wei , Senzhang Wang

Conversational recommender system (CRS) interacts with users through multi-turn dialogues in natural language, which aims to provide high-quality recommendations for user's instant information need. Although great efforts have been made to…

信息检索 · 计算机科学 2023-10-27 Chenzhan Shang , Yupeng Hou , Wayne Xin Zhao , Yaliang Li , Jing Zhang

E-commerce pre-sales dialogue aims to understand and elicit user needs and preferences for the items they are seeking so as to provide appropriate recommendations. Conversational recommender systems (CRSs) learn user representation and…

计算与语言 · 计算机科学 2024-10-21 Yuanxing Liu , Wei-Nan Zhang , Yifan Chen , Yuchi Zhang , Haopeng Bai , Fan Feng , Hengbin Cui , Yongbin Li , Wanxiang Che

Recommender systems have traditionally followed modular architectures comprising candidate generation, multi-stage ranking, and re-ranking, each trained separately with supervised objectives and hand-engineered features. While effective in…

信息检索 · 计算机科学 2025-10-06 Rahul Raja , Anshaj Vats , Arpita Vats , Anirban Majumder

Conversational Recommender Systems (CRS) illuminate user preferences via multi-round interactive dialogues, ultimately navigating towards precise and satisfactory recommendations. However, contemporary CRS are limited to inquiring binary or…

信息检索 · 计算机科学 2024-04-04 Wei Fan , Weijia Zhang , Weiqi Wang , Yangqiu Song , Hao Liu